Shock-absorber.



w. H. 0001;. SHOCK ABSORBER-- APPLICATION FILED NOV. 14, 1912.

Patented May 20, 1913;

M) w %W% -WALTER coon, or new onLnANs, LoU-IsIA- A.

snocnassonnna.

SpecificationofLetters 'Pat'enti, Pgten ted-Itlay 2 i 5,313,

Serial No. 719,662 and which embodies a transverse main spring, a cushioning element, and a shock-transmitting element,- these parts being in a common vertical plane and the shock-transmitting element serving; to pass the unca red for impulses of the main spring to the cushioning-element, the-latter taking its bearing between the sho'cktrans' niitting element and the vehicle frame or body.

The present invention proposes a form of shock absorber which is especially appli cable to main springs of so-called 'hump" or camel-back charactensuchas' are used, for example, in the Well known Ford automobile. i

Owing to the peculiar outline of a main spring of the character stated, some difficulty has been experienced in efficiently absorbing or compensating for direct and re actionary vibrations, and the object. of the present invention is to provide a shock absorber for use in connection with a spring of the character stated by whichthe proper relati n of the vehicle body will be effectively i'uainiaiued, and those vibrations which are beyond the capacity of the main spring to absorb and care for will be eflectively and unii'orml) taken up.

An embodiment of the invention is illustrated in the accompanying drawing which comprises a single figure shmving the improved shock absorber partly in elevation and partly in section.

The transverse main springis shown at l and may be suspended atits ends in'any usual manner. .The central portion. of the main spring is formed into a relatively Wide hump 2 of arcuatoutline. The cushioning element, which preferably comprises an elongated pneumatic tube, is shown at 3 and works between the body 4 of the vehicle and a shock-transmittintr element The shoclotrausulilting element is'in the nature of an elongated bar, preferaliily channeled on its under face, and of substantially the ,A ncaao fil d-Norwe an, 1912. Serial N 731,355,

,same length as the'cushioning element for which it furnishes a seat. For -the, purpose terbalancing and unifying the action of, the

said element 5 bodyet, the connection between said springs prising'links 7 which enab e v. The shock-transmitting"element 5 is carried by the 'trally thereto. It is essential that the conmotion between the element 5 andthe spring .1 should be-of rigidcharacter in order that there maybe no play between said'element- ,pieces' 8, conforming: to the curve of the and the -'adjaceut face oftheel'enient I curved retaining plate 9 is arranged at the under side of the hump, brackets ll are provided as Ineansofcrmnection betweenithe element. 5 and the spring 1. the bolts IQ. of course, taking' through the wedge pieces 8 and the plate 9 aforesaid. In this way, a secure connection of prevented, 4

WV hen the vibrations developed by the running ofthe vehicle for and absorb, so that the spring itself vibrates, are transmitted by the element 5 to the cushion 3 and the spring Glare at the same time acted on by saidelement 5 forthe purpose of maintaining the equilibrium of the body 4 and also the yielding action of the element 5. Thus, if the shock encountered is developed at the hand portion of the spring yields, the righthand portion of the element 5 will be tilted upwardly and the left-hand portion of said element will be tilted downwardly, and this will produce a compression of the on n 3 at one end thereof, but the equilibrium of the vehicle body will be maintained by the springs 6 which are connected to the element Band to said body at opposite sides thereof.

Moreover, that side of the element 5 wh ch spring 1 and is secured cen the vibrating impulses of said spring of resisting and equalizing of maintaining the proper relationof'the g vehicle and for also-resisting or coun 'eg I elementifb, relatively strong curved leaf or bowsprings.Gare connected at the ends o'f I and also'at thesides oft-he v i v v and the sides of said body refer'ably comi thesprings 6' .to have the reouisite degree Iofyielding ac- 4 andsaid spring,'and for thispurpose, Wedge hump 2, are introduced between said hump 5. a'. V 180 and bolts 10 and the element 5 to the spring. 1 is established and any; relative play. of said element and spring is' 9G" are such that theyjare beyond the capacity of the spring 1 to care right side of the vehicle, so that the rightis tilted upwardly will efiect a compression, so to speak, of the spring 6 which is connected thereto, and that side of the element which is tilted downwardly will effect a 5 tensioning, so to speak, of the otherspring 6. Power is thus stored in both of said springs in such manner that they act to prevent the vibrations of the element 5 from being too free and consequently to reduce.

element and the body of the vehicle, and a cushioning element which normally seats on the shock-transmitting element and is arranged between the latter and the body of the vehicle. Y Y

2. In a shock absorber, a transverse main spring having a central hump, a shocktransmitting bar rigidly secured at itscenter to said hump, curved leaf springs 0on mating the ends of said bar and the body of the vehicle, and an elongated air cushion which'normally seats on said bar and is arranged'between the latter and the body of the vehicle.

3. In a shock absorber, a transverse main spring, a shock-transmitting bar rigidly secured over and to the central portion of said spring, curved lea-f springs connecting the ends of said bar: and the sides of the vehicle body, and an elongated air cushion which normally seats on said bar and is arranged between the latter and the vehicle bod 4. 111 a shock absorber, a transverse main spring having a central hump, a shocktransmitting bar rigidly secured at its center to said hump, spring connections between the ends of said-bar and the vehicle body, and a cushioning element which normally seats on the shock-transmitting element and is arranged between-the latter and the vehicle body. 7 s

In testimony wherecf I have hereunto set my hand in presence of two subscribing witnesses.

" WALTER H. COOK. Witnesses:

JOHN RIDGLEY, ROBERT WATERMAN,

' Copies of thls patent may be obtained for five cents eaeh, by addressing the Commissioner of Patents, v Washington, D. C. I 

